On resolve error of [rest..], suggest [rest @ ..]
#117998
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
When writing a pattern to collect multiple entries of a slice in a
single binding, it is easy to misremember or typo the appropriate syntax
to do so, instead writing the experimental `X..` pattern syntax. When we
encounter a resolve error because `X` isn't available, we suggest
`X @ ..` as an alternative.
```
error[E0425]: cannot find value `rest` in this scope
--> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:13
|
LL | [1, rest..] => println!("{rest:?}"),
| ^^^^ not found in this scope
|
help: if you meant to collect the rest of the slice in `rest`, use the at operator
|
LL | [1, rest @ ..] => println!("{rest:?}"),
| +
```
Fix rust-lang#88404.
|
r? @wesleywiser (rustbot has picked a reviewer for you, use r? to override) |
rustbot
added
S-waiting-on-review
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 17, 2023
…iaskrgr Rollup of 3 pull requests Successful merges: - rust-lang#115476 (document ABI compatibility) - rust-lang#117688 (Misc changes to StableMIR required to Kani use case.) - rust-lang#117998 (On resolve error of `[rest..]`, suggest `[rest @ ..]`) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 17, 2023
Rollup merge of rust-lang#117998 - estebank:issue-88404, r=TaKO8Ki On resolve error of `[rest..]`, suggest `[rest @ ..]` When writing a pattern to collect multiple entries of a slice in a single binding, it is easy to misremember or typo the appropriate syntax to do so, instead writing the experimental `X..` pattern syntax. When we encounter a resolve error because `X` isn't available, we suggest `X @ ..` as an alternative. ``` error[E0425]: cannot find value `rest` in this scope --> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:13 | LL | [1, rest..] => println!("{rest:?}"), | ^^^^ not found in this scope | help: if you meant to collect the rest of the slice in `rest`, use the at operator | LL | [1, rest @ ..] => println!("{rest:?}"), | + ``` Fix rust-lang#88404.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
When writing a pattern to collect multiple entries of a slice in a single binding, it is easy to misremember or typo the appropriate syntax to do so, instead writing the experimental
X..pattern syntax. When we encounter a resolve error becauseXisn't available, we suggestX @ ..as an alternative.Fix #88404.